3-(Bromomethyl)-6-hydroxy-4-nitro-2-(trifluoromethoxy)pyridine
3-(Bromomethyl)-6-hydroxy-2-iodo-5-(trifluoromethoxy)pyridine
5-(Bromomethyl)-2-hydroxy-3-nitro-4-(trifluoromethoxy)pyridine
5-(Bromomethyl)-2-hydroxy-3-iodo-6-(trifluoromethoxy)pyridine
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